6126530221 has 36 divisors (see below), whose sum is σ = 7682551200. Its totient is φ = 4857865488.

The previous prime is 6126530219. The next prime is 6126530231. The reversal of 6126530221 is 1220356216.

It is not a de Polignac number, because 6126530221 - 2¹ = 6126530219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6126530221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6126530231) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1719640 + ... + 1723198.

It is an arithmetic number, because the mean of its divisors is an integer number (213404200).

Almost surely, 2^6126530221 is an apocalyptic number.

It is an amenable number.

6126530221 is a deficient number, since it is larger than the sum of its proper divisors (1556020979).

6126530221 is a wasteful number, since it uses less digits than its factorization.

6126530221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3678 (or 3628 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6126530221 is about 78272.1548253273. The cubic root of 6126530221 is about 1829.8052109351.

Adding to 6126530221 its reverse (1220356216), we get a palindrome (7346886437).

The spelling of 6126530221 in words is "six billion, one hundred twenty-six million, five hundred thirty thousand, two hundred twenty-one".